HTC's rumoured upgrade to the One X Android smartphone, the One X+, has landed at the FCC. Labelled as the PM63100, which has shown up in benchmark results as the HTC One X+ previously, it features a Tegra 3 1.7GHz quad-core processor, and LTE with AT&T compatible bands 2, 4, 5, and 17.

This comes a week after an XDA developer revealed purported details about the device. He has so far been correct, saying that the device would feature a Tegra 3 chipset. He also claims that it will feature 1GB of RAM, 32GB of storage, a 1800mAH battery and Android 4.1 Jelly Bean with HTC's sense 4.5.